From 4ad98ac46490d5f8441025930070eaf028cfd0f2 Mon Sep 17 00:00:00 2001
From: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Date: Tue, 7 May 2019 20:34:22 +0900
Subject: [PATCH] tomoyo: Don't emit WARNING: string while fuzzing testing.
Commit cff0e6c3ec3e6230 ("tomoyo: Add a kernel config option for fuzzing
testing.") enabled the learning mode, but syzkaller is detecting any
"WARNING:" string as a crash. Thus, disable TOMOYO's quota warning if
built for fuzzing testing.
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: James Morris <jamorris@linux.microsoft.com>
---
security/tomoyo/util.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/security/tomoyo/util.c b/security/tomoyo/util.c
index 0517cbdd72756..52752e1a84ed8 100644
--- a/security/tomoyo/util.c
+++ b/security/tomoyo/util.c
@@ -1076,8 +1076,10 @@ bool tomoyo_domain_quota_is_ok(struct tomoyo_request_info *r)
domain->flags[TOMOYO_DIF_QUOTA_WARNED] = true;
/* r->granted = false; */
tomoyo_write_log(r, "%s", tomoyo_dif[TOMOYO_DIF_QUOTA_WARNED]);
+#ifndef CONFIG_SECURITY_TOMOYO_INSECURE_BUILTIN_SETTING
pr_warn("WARNING: Domain '%s' has too many ACLs to hold. Stopped learning mode.\n",
domain->domainname->name);
+#endif
}
return false;
}
--
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